Class 4/5
Class 4/5
Print Media Solution SheetDescription
A mass technology migration of the legacy Public Switched Telephone Network (PSTN) to next-generation VoIP network technology is underway. When a RadiSys Convedia media server is controlled by Class 4/5 feature logic running on a 3rd party softswitch, IMS CSCF, or application server, an open, economical VoIP solution can be deployed offering PSTN-equivalence in features, capabilities, and reliability.
The majority of the today's PSTN telephony features are support by Class 4 (toll) and Class 5 (local) digital switching equipment and intelligent network elements. However, the reality is that many service providers supporting today's PSTN are offering similar features and capabilities, so pricing and margins are shrinking rapidly. Squeezing additional cost savings out of the legacy circuit-switched network is proving ever more difficult. A better next generation approach is required to support basic and enhanced services, position the service provider to seize upon new service ideas and opportunities, while driving costs out of the network.
RadiSys media servers support a broad range of media processing capabilities relevant to next generation VoIP solutions. When packaged with Class 4/5 feature sets running on a softswitch or application server, an economical VoIP solution can be deployed offering PSTN-equivalence in features, capabilities, and reliability. Convedia, along with our softswitch and application partners, can provide comprehensive Class 5 service solutions including call waiting, call forwarding, CLASS features, or caller ID. Class 4 features are also available including 1-800 services, private voice networks, directory assistance, operator services, custom dialing plans, or follow-me services. Next generation solutions also offer capabilities not available with TDM-based solutions including rapid service/feature introduction on off-the-shelf application servers. End users also benefit through browser-based self-provisioning and control.
RadiSys' integrated media processing features provide a cornerstone to carrier-scale Class 4/5 service solutions including:
- Flexible control interface options including SIP netann, SIP/MSML, SIP/VoiceXML, MGCP, or H.248.
- Customizable, multi-language announcements
- DTMF tone detection and generation
- Digit collection for telephony application servers
- Extensive IVR dialog processing capabilities for feature control
- N-way Conference bridging
- Transcoding between different codec formats
- Integrated fax processing capabilities
- Automatic speech recognition (ASR)
- Text-to-speech (TTS)
Why should established voice service providers consider migrating their Class 4/5 services to a next generation architecture? The answer is dramatic cost savings. Next generation VoIP architectures, built around RadiSys Media Servers, offer cost savings in capital, ongoing operations, and network transport relative to legacy TDM-based circuit switched architectures.
